Phylogenetic position of Riemerella anatipestifer based on 16S rRNA gene sequences

Subramaniam, Sumathi; Chua, Kim-Lee; Tan, Hai-Meng; Loh, Hilda; Kuhnert, Peter; Frey, Joachim (1997). Phylogenetic position of Riemerella anatipestifer based on 16S rRNA gene sequences. International Journal of Systematic Bacteriology, 47(2), pp. 562-565. International Union of Microbiological Societies 10.1099/00207713-47-2-562

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Riemerella anatipestifer, the causative agent of septicemia anserum exsudativa (also called new duckling disease), belongs to the family Flavobacteriaceae of gram-negative bacteria. We determined the DNA sequences of the rrs genes encoding the 16S rRNAs of four R. anatipestifer strains by directly sequencing PCR-amplified rrs genes. A sequence similarity analysis confirmed the phylogenetic position of R. anatipestifer in the family Flavobacteriaceae in rRNA superfamily V and allowed fine mapping of R. anatipestifer on a separate rRNA branch comprising the most closely related species, Bergeyella zoohelcum, as well as Chryseobacterium balustinum, Chryseobacterium indologenes, and Chryseobacterium gleum. The sequences of the rrs genes of the four R. anatipestifer strains varied between 0.5 and 1.0%, but all of the strains occupied the same position on the phylogenetic tree. In general, differences in rrs genes were observed among R. anatipestifer strains, even within a given serotype, as shown by restriction fragment length polymorphism of PCR-amplified rrs genes.

Item Type:

Journal Article (Original Article)


05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP) > Institute of Veterinary Bacteriology

UniBE Contributor:

Kuhnert, Peter, Frey, Joachim


500 Science > 570 Life sciences; biology
600 Technology > 630 Agriculture




International Union of Microbiological Societies




Peter Kuhnert-Ryser

Date Deposited:

15 Dec 2014 11:55

Last Modified:

05 Dec 2022 14:38

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